Lock & Latch Board

This activity has four different types of locks and latches to manipulate, with a colorful picture hidden beneath each one. The latches include a one-digit rotary lock, a three-digit briefcase lock, a barrel-bolt lock, and a key lock where the key is securely affixed to the board so that it can't be lost. The board measures 33 cm x 25 cm (about 13" x 10").